Mtd H660G User Manual download pdf (Page 13)

Both Wheels Driving: Insert the click pin through

the hole in the hub of the rim and the inside hole on

the snow thrower’s right axle. This position is good

for heavy snow as there is power drive in both

wheels.

IMPORTANT:

Never operate the snow thrower with the

click pin inserted through both the rim and the outside

hole in the axle. Doing so can result in serious damage

to the drive system.

SECTION 6: MAINTAINING YOUR SNOW THROWER

WARNING: Before servicing, repairing or

inspecting, disengage all clutch levers and

stop engine. Wait until all moving parts have

come to a complete stop. Disconnect spark

plug wire and ground it against the engine to

prevent unintended starting.

Lubrication

Engine

• Refer to the engine manual for maintenance

procedures and instructions.

WARNING: When following instructions in

the engine manual for draining oil, be sure to

protect frame to avoid oil dripping onto

transmission parts.

Gear Shaft

• Lubricate the gear shaft with a good all-weather

multi-purpose light grease at least once a season or

after every 25 hours of operation.

IMPORTANT:

Keep all grease and oil off friction wheel

and drive plate.

Gear Case

• The auger gearbox has been filled with grease at

the factory. If disassembled for repairs, lubricate

with 1-1/2 ounces of grease, part no. 737-0168.

IMPORTANT:

Do not overfill the gear case. Damage to

the seals could result. Be sure the vent plug is free of

grease in order to relieve pressure.

Wheels

• Oil or spray lubricant into bearings at least once a

season. Pull the klick pins and remove wheels,

clean and coat axles with a multipurpose

automotive grease. See Figure 16.

Figure 16

Auger Shaft

• At least once a season, remove shear bolts on

auger shaft. Oil or spray lubricant inside shaft.

Also lubricate the auger bearings at least once a

season. See Figure 17.

Figure 17

Chute Directional Control

• The worm gear on the chute directional control

should be greased with multipurpose automotive

grease.

Drive and Shifting Mechanism

• Remove rear cover. Oil any chains, sprockets,

gears, bearings, shafts, and shifting mechanism at

least once a season. Use engine oil or a spray

lubricant. Avoid getting oil on rubber friction wheel

and aluminum drive plate. See Figure 18.

Figure 18

Klick Pin

Axle

Shear Bolts

Bearings

Chain

Shift Lever

Gear Shaft

Avoid oil on

friction wheel and

drive plate

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Mtd H660G User Manual Page 13

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